Updated: Aug 15, 2011

The weather on your TripIt itinerary page is based on historical averages for that day over the past 25 years.

Because forecast information is generally only available for the next week, TripIt uses historical averages to help you plan
for weather far in advance of your trip.

• You'll see average low and high temperatures for that day, plus an icon to indicate an above-average likelihood of
  precipitation (snow or rain) or high winds.
• Please note that historical average weather data is not the same as a weather forecast, which can vary greatly from
  historical conditions.